/* blank check */

function chk()
{
	if (frmsearch.key.value == ""){
		alert("Input Search Keyword!!")
		frmsearch.key.focus();
		return false;
	}
	else if(frmsearch.key.value == "TITLE SEARCH"){
		alert("Input Search Keyword!!")
		frmsearch.key.focus();
		return false;
	}
	else
		return true;
}


/* new browser */

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}



/* full search blank check */
function chk1()
{
	if (frmsearch1.key.value == ""){
		alert("Input Search Keyword!!")
		frmsearch1.key.focus();
		return false;
	}
	else if(frmsearch1.key.value == "TITLE SEARCH"){
		alert("Input Search Keyword!!")
		frmsearch1.key.focus();
		return false;
	}
	else
		return true;
}



/* full search reset */
function reset()
	{
		frmsearch.key.value==""
	}


/* checkbox È®ÀÎ, ÇØÁ¦ */

function isSelected(objCheck){
		var count = 0;
		if(objCheck.name!=undefined){
				if(objCheck.checked==true)
			{
				count=1;
			}
		}else{
				for(i=0;i<objCheck.length;i++){
					if(objCheck[i].checked==true){
						count=count+1;
						break;
					}
				}
			}
		if(count==0){
			alert("Not Checked");
			return false;
		}else{
			return true;
		}
	}



function check(field) {
var checkflag = "true";

	if (checkflag == "false") {
	  for (i = 0; i < field.length; i++) {
	   field[i].checked = true;
	  }
	  checkflag = "true";
	} else {
	  for (i = 0; i < field.length; i++) {
	   field[i].checked = false; 
	  }
	  checkflag = "false"; 
	}
}




/* clear text */

	function clearText(thefield){
	if (thefield.defaultValue==thefield.value)
		thefield.value = ""
	}



/* advanced search check */
function adv_chk()
{
	if (adv_frm.key1.value == "" && adv_frm.key2.value == "" && adv_frm.key3.value == ""){
		alert("Input Search Keyword!!")
		adv_frm.key1.focus();
		return false;
	}
	else if(adv_frm.key2.value == "" && adv_frm.key3.value != ""){
		alert("Input Second Search Keyword!!")
		adv_frm.key2.focus();
		return false;
	}
	else if(adv_frm.year_start.value > adv_frm.year_end.value){
		alert("Wrong Select. Select again!!")
		adv_frm.year_start.focus();
		return false;
	}
	else
		return true;
}



/* advanced search radiobox checking */
function	ChangeJournalYear(journalyear)
{
	var	journalyearLength = journalyear.length;
		for (var i = 0; i < journalyearLength; i++)		
		{			
		if  ( journalyear[i].value == "term" )
		{
			journalyear[i].checked = true;
		}
		else
		{
			journalyear[i].checked = false;
		}
	}
}



/* issue ³» search blank check */
function key_chk()
{
	if (issue_frm.issue_key.value == ""){
		alert("Input Search Keyword!!")
		issue_frm.issue_key.focus();
		return false;
	}
	else
		return true;
}